7:00 AM | ***Tropical moisture and the threat of heavy rain***
Paul Dorian
6-Day forecast for the Washington, D.C. metro region
Today
Mainly cloudy, cooler-than-normal, chance of showers and thunderstorms, some of the rain can be heavy at times, highs not far from 80 degrees (normal high at DCA is 88 degrees); SE winds at 5-10 mph
Tonight
Mainly cloudy, mild, muggy, chance of showers and thunderstorms, some of the rain can be heavy at times, lows near 70 degrees
Tuesday
Mainly cloudy, still on the cool side of normal, humid, chance of showers and thunderstorms, some of the rain can be heavy at times, lower 80's for afternoon highs
Tuesday Night
Mainly cloudy, mild, muggy, chance of showers and thunderstorms, some of the rain can be heavy at times, near 70 degrees for late night lows
Wednesday
Mainly cloudy, still a bit below-normal, humid, chance of showers and thunderstorms, some of the rain can be heavy at times, lower 80’s
Thursday
Partly sunny, warm, chance of showers and thunderstorms, some of the rain can be heavy at times, mid 80’s
Friday
Partly sunny, warm, chance of showers and thunderstorms, mid 80’s
Saturday
Partly sunny, warm, chance of showers and thunderstorms, mid-to-upper 80’s
Discussion
The week ahead looks to be very unsettled with multiple chances for showers and thunderstorms and some of the rain will be heavy at times. In fact, the rain chances this week will be enhanced by the addition of tropical moisture that will feed in from the southern states and localized flash flooding could become a widespread concern in the Mid-Atlantic regio. It will also be much cooler this week compared to last with high temperatures confined to the 80's and generally below-normal for the middle of August. The Atlantic Basin tropical scene remains quite active with "Fred" and "Grace" on the playing field. "Fred" has regained status as a tropical storm and should reach the western part of Florida's Panhandle by late tonight and then its moisture field will push northward into the Tennessee Valley and then the Mid-Atlantic region by mid-week. Meanwhile, "Grace" will take a more southerly path compared to "Fred" and likely end up in the southern/western part of the Gulf of Mexico.
Meteorologist Paul Dorian
Peraton
peratonweather.com